进入编辑模式时动画自定义绘制的UITableViewCell

// 定义一个UIImage对象，用于显示编辑模式下的背景图片
UIImage *image = [UIImage imageNamed:@"edit_mode_background"];
// 定义一个UIImageView对象，用于显示背景图片
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
// 将UIImageView对象添加到UITableViewCell的contentView中
[cell.contentView addSubview:imageView];
// 设置UIImageView对象的frame属性，使其覆盖整个UITableViewCell的contentView
imageView.frame = CGRectMake(0, 0, cell.contentView.bounds.size.width, cell.contentView.bounds.size.height);

// 创建一个UIImage对象，用于显示编辑模式下的边框图片
UIImage *borderImage = [UIImage imageNamed:@"edit_mode_border"];
// 定义一个UIImageView对象，用于显示边框图片
UIImageView *borderImageView = [[UIImageView alloc] initWithImage:borderImage];
// 将UIImageView对象添加到UITableViewCell的contentView中
[cell.contentView addSubview:borderImageView];
// 设置UIImageView对象的frame属性，使其覆盖整个UITableViewCell的contentView
borderImageView.frame = CGRectMake(0, 0, cell.contentView.bounds.size.width, cell.contentView.bounds.size.height);

// 创建一个UIImage对象，用于显示编辑模式下的前景图片
UIImage *foregroundImage = [UIImage imageNamed:@"edit_mode_foreground"];
// 定义一个UIImageView对象，用于显示前景图片
UIImageView *foregroundImageView = [[UIImageView alloc] initWithImage:foregroundImage];
// 将UIImageView对象添加到UITableViewCell的contentView中
[cell.contentView addSubview:foregroundImageView];
// 设置UIImageView对象的frame属性，使其覆盖整个UITableViewCell的contentView
foregroundImageView.frame = CGRectMake(0, 0, cell.contentView.bounds.size.width, cell.contentView.bounds.size.height);

// 创建一个CABasicAnimation对象，用于设置进入编辑模式的动画
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.translation.y"];
// 设置动画的持续时间、速度和延迟时间
animation.duration = 0.3;
animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
animation.fromValue = [NSNumber numberWithFloat:0];
animation.toValue = [NSNumber numberWithFloat:cell.contentView.bounds.size.height];
// 将动画应用到UIImageView对象上
[borderImageView.layer setTransform:CATransform3DMakeTranslation(0, cell.contentView.bounds.size.height, 0)];
[borderImageView.layer addAnimation:animation forKey:nil];

// 创建一个CABasicAnimation对象，用于设置离开编辑模式的动画
CABasicAnimation *animation2 = [CABasicAnimation animationWithKeyPath:@"transform.translation.y"];
// 设置动画的持续时间、速度和延迟时间
animation2.duration = 0.3;
animation2.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
animation2.fromValue = [NSNumber numberWithFloat:cell.contentView.bounds.size.height];
animation2.toValue = [NSNumber numberWithFloat:0];
// 将动画应用到UIImageView对象上
[borderImageView.layer setTransform:CATransform3DMakeTranslation(0, 0, 0)];
[borderImageView.layer addAnimation:animation2 forKey:nil];